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What Percent Is a of b Worksheet

Percentage lesson 7: What percent is one number of another? · Set 172 · 40 questions
TalentJR

How to work it out (Part over whole): Find the whole (the number after “of”) and the part. Percent = part ÷ whole × 100. Multiply the part by 100 first, then divide by the whole: 18 × 100 = 1800, and 1800 ÷ 72 = 25, so 25%.

NameDateTime takenScore ___ / 40
  1. 1.What percent of 20 is 18?
  2. 2.What percent of 40 is 4?
  3. 3.?% of 20 = 4
  4. 4.110 is what percent of 250?
  5. 5.?% of 150 = 126
  6. 6.?% of 150 = 12
  7. 7.What percent of 150 is 24?
  8. 8.12 is what percent of 80?
  9. 9.What percent of 20 is 19?
  10. 10.?% of 50 = 8
  11. 11.What percent of 80 is 12?
  12. 12.What percent of 250 is 15?
  13. 13.8 is what percent of 80?
  14. 14.?% of 400 = 156
  15. 15.273 is what percent of 300?
  16. 16.What percent of 300 is 102?
  17. 17.?% of 20 = 2
  18. 18.?% of 50 = 43
  19. 19.What percent of 200 is 158?
  20. 20.36 is what percent of 120?
  21. 21.2 is what percent of 25?
  22. 22.What percent of 50 is 8?
  23. 23.?% of 250 = 70
  24. 24.33 is what percent of 300?
  25. 25.What percent of 50 is 5?
  26. 26.37 is what percent of 50?
  27. 27.21 is what percent of 50?
  28. 28.?% of 300 = 15
  29. 29.?% of 40 = 22
  30. 30.?% of 400 = 96
  31. 31.?% of 400 = 44
  32. 32.1 is what percent of 20?
  33. 33.What percent of 40 is 10?
  34. 34.?% of 500 = 110
  35. 35.?% of 50 = 5
  36. 36.What percent of 20 is 11?
  37. 37.?% of 20 = 15
  38. 38.?% of 50 = 11
  39. 39.9 is what percent of 150?
  40. 40.?% of 40 = 36

Answer key

  1. 90
  2. 10
  3. 20
  4. 44
  5. 84
  6. 8
  7. 16
  8. 15
  9. 95
  10. 16
  11. 15
  12. 6
  13. 10
  14. 39
  15. 91
  16. 34
  17. 10
  18. 86
  19. 79
  20. 30
  21. 8
  22. 16
  23. 28
  24. 11
  25. 10
  26. 74
  27. 42
  28. 5
  29. 55
  30. 24
  31. 11
  32. 5
  33. 25
  34. 22
  35. 10
  36. 55
  37. 75
  38. 22
  39. 6
  40. 90

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